Katy Perry and John Mayer, Romantic Dinner Date in Los Angeles

The "Firework" singer and her beau were spotted holding hands as they left Italian restaurant Osteria Mozza in West Hollywood Friday, with Perry toning down her usually bold look in a flowy, floral dress.

Things appear to have completely turned around since last fall, when Perry and Mayer briefly split.

The couple has not only been spending a lot of time together since then, but the superstar singer even went on to post a Twitpic of Mayer in a Santa Claus suit on Christmas, with the caption, "Santa Baby."